I have no furniture in my living room! only my tank! I was being kind of a smart***! I never planned on putting them in a BB tank! But, I was curious as well. I bought a 20g tank just for these guys, I just wasnt thrilled with the idea of setting up yet another tank just for them. I guess I could make it a specialty tank, like my 30g (soon to be BB) reef tank, and my 90g FOWLR BB that I'm setting up as soon as I finish tiling the floor! Hence the no furniture bit!